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Do gluons have mass?

  1. Oct 18, 2015 #1
    how to explain the fact that the gluons are massless, whereas the strong force is short range ?
     
  2. jcsd
  3. Oct 18, 2015 #2

    Orodruin

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    The strong force is short range because it is a non-Abelian gauge theory which is confining, i.e., at large scales there are no color charged states. The residual strong force is mediated by pions which are massive.
     
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